CN112968315A - Metal shielding assembly and connector - Google Patents
Metal shielding assembly and connector Download PDFInfo
- Publication number
- CN112968315A CN112968315A CN202110144504.0A CN202110144504A CN112968315A CN 112968315 A CN112968315 A CN 112968315A CN 202110144504 A CN202110144504 A CN 202110144504A CN 112968315 A CN112968315 A CN 112968315A
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- Prior art keywords
- metal shielding
- metal
- connecting portion
- assembly
- shield
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6461—Means for preventing cross-talk
Abstract
The invention relates to the technical field of high-speed backplane connectors, in particular to a metal shielding assembly and a connector; the metal shielding assembly includes: a first metal shield; the second metal shielding piece comprises a first connecting portion and a plurality of contact portions arranged on the first connecting portion at intervals, the first connecting portion is connected to the first metal shielding piece, the contact portions comprise two first elastic pieces arranged on two sides of the first connecting portion respectively, and the two first elastic pieces can be in lap joint with the butt-plug end shielding piece of the butt-joint connector. The contact part is provided with two first elastic sheets which are both lapped with the opposite plug end shielding piece, so that a backflow path can be effectively shortened, and crosstalk between signals is reduced; moreover, the contact parts are communicated through the first connecting parts, so that a return path between the differential pairs can be shortened, and the signal quality is improved.
Description
Technical Field
The invention relates to the technical field of high-speed backplane connectors, in particular to a metal shielding assembly and a connector.
Background
In the field of high-speed backplane connectors, the signal transmission rate is faster and faster, and the signal crosstalk therewith is gradually increased, and in order to reduce the crosstalk, a method generally adopted is to shorten a signal return path, generally punch a spring sheet on a shielding member, and lap-joint the spring sheet with another grounding trace or the shielding member or other mechanisms with a grounding function.
With the development of miniaturization and high-speed connectors, a slight change in structure will bring about a remarkable change in transmission performance and reliability. Although the return path can be improved and crosstalk can be reduced by punching the spring plate, the transmission performance and reliability of the connector may be reduced.
Therefore, a metal shielding assembly and a connector are needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a metal shielding assembly and a connector, which can effectively shorten a return path, reduce crosstalk between signals and improve signal quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, a metal shielding assembly is provided, comprising:
a first metal shield;
the second metal shielding piece comprises a first connecting portion and a plurality of contact portions arranged on the first connecting portion at intervals, the first connecting portion is connected to the first metal shielding piece, the contact portions comprise two first elastic pieces arranged on two sides of the first connecting portion respectively, and the two first elastic pieces can be in lap joint with the butt-plug end shielding piece of the butt-joint connector.
As a preferred technical solution of the metal shielding assembly, the second metal shielding element further includes a fixing portion, and the fixing portion connects the first connecting portion and the first metal shielding element.
As a preferable embodiment of the metal shielding assembly, the fixing portion and the first metal shielding member are connected by welding.
As a preferable technical solution of the metal shielding assembly, the contact portion is disposed perpendicular to the first connection portion.
As a preferable technical solution of the metal shielding assembly, both side walls of the opposite-plug end shielding member have the contact portion overlapped therewith.
As a preferred technical scheme of the metal shielding assembly, the metal shielding assembly further comprises a plurality of elastic sheet assemblies, wherein the first metal shielding piece is provided with a plurality of elastic sheet assemblies at intervals, and the elastic sheet assemblies can be in lap joint with the opposite insertion end shielding piece.
As a preferred technical scheme of the metal shielding assembly, the elastic sheet assembly comprises a second connecting part and one or two second elastic sheets arranged on the second connecting part, and the second elastic sheets can be in lap joint with the opposite insertion end shielding part.
As a preferred technical scheme of the metal shielding assembly, the second elastic sheet is lapped on two side walls of the opposite-inserting-end shielding piece.
As a preferred technical solution of the metal shielding assembly, the first metal shielding member includes a plastic package module and two metal shielding plates, the two metal shielding plates are respectively attached to two surfaces of the plastic package module, the second metal shielding member is connected to one of the metal shielding plates, and the spring plate assembly is connected to the other metal shielding plate.
In a second aspect, a connector is provided, comprising:
a metal shielding assembly as described above;
and the part of the differential signal wire is arranged in the first metal shielding piece, and the butt joint terminal of the differential signal wire is exposed out of the first metal shielding piece.
The invention has the beneficial effects that:
the contact part is provided with two first elastic sheets which are both lapped with the opposite plug end shielding piece, so that a backflow path can be effectively shortened, and crosstalk between signals is reduced; moreover, the contact parts are communicated through the first connecting parts, so that a return path between the differential pairs can be shortened, and the signal quality is improved.
Drawings
FIG. 1 is a first schematic structural diagram of a metal shielding assembly according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural view of a second metallic shield provided by the present invention;
FIG. 4 is a second schematic structural view of a metal shielding assembly according to the present invention;
FIG. 5 is an enlarged partial view at B in FIG. 4;
FIG. 6 is an exploded view of a metal shield assembly provided by the present invention;
fig. 7 is a partial enlarged view at C in fig. 6.
In the figure: 1. a first metal shield; 11. a plastic package module; 111. an accommodating chamber; 12. a metal shielding plate;
2. a second metal shield; 21. a first connection portion; 22. a contact portion; 23. a fixed part;
3. a spring plate assembly; 31. a second connecting portion; 32. a second elastic sheet;
4. a differential signal line; 41. a butt terminal;
20. a mating end shield; 201. a side wall.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1 to 7, the present embodiment discloses a metal shield assembly including a first metal shield 1 and a second metal shield 2.
The first metal shielding part 1 is a signal reflow plane, the first metal shielding part 1 includes two metal shielding plates 12, and the two metal shielding plates 12 are respectively attached to two surfaces of the plastic package module 11 and can be specifically connected in a bonding manner. The plastic package module 11 is of a plastic structure, is formed by injection molding, and is used for isolating the two metal shielding plates 12. The two metal shielding plates 12 are mainly used for enhancing isolation, increasing signal return paths and reducing signal crosstalk.
The second metal shielding part 2 includes a first connecting portion 21 and a plurality of contact portions 22 arranged on the first connecting portion 21 at intervals, the first connecting portion 21 is connected to the first metal shielding part 1, the contact portions 22 include two first elastic pieces respectively arranged on two sides of the first connecting portion 21, and the two first elastic pieces can be overlapped with the butt-plug end shielding part 20 of the butt-joint connector.
The contact portion 22 is connected to the first metal shield 1 through the first connection portion 21, and sufficient backflow can be ensured; the contact part 22 is provided with two first elastic sheets which are respectively lapped with the opposite plug end shielding piece 20, so that a backflow path can be effectively shortened, and crosstalk between signals is reduced; furthermore, the contact portions 22 are communicated with each other through the first connecting portion 21, so that a return path between the differential pairs can be shortened, and signal quality can be improved.
Specifically, the number of the contact portions 22 is the same as that of the side walls 201 of the opposite-insertion-end shielding member 20, and the contact portions 22 are arranged in a one-to-one correspondence manner, and the positions of the contact portions 22 are arranged in a correspondence manner with the side walls 201 of the opposite-insertion-end shielding member 20, so that the contact portions 22 are overlapped with the two side walls 201 of the opposite-insertion-end shielding member 20. That is, the separation distance between the intermediate lines of two adjacent contact portions 22 is the separation distance between two side walls 201 of the opposite terminal shields 20 or the separation distance between two adjacent opposite terminal shields 20. The contact portion 22 is specifically overlapped with the sidewall 201 of the opposite-plug terminal shield 20 in parallel to the surface of the first metal shield 1.
One of the two first elastic pieces of the contact portion 22 is disposed close to the first metal shielding element 1, and the other one is disposed far from the first metal shielding element 1. The second metal shielding part 2 further includes a fixing portion 23, specifically, the fixing portion 23, the first connecting portion 21 and the contact portion 22 are integrally formed, the fixing portion 23 connects the first connecting portion 21 and the first metal shielding part 1, the fixing portion 23 is specifically connected to one of the metal shielding plates 12, and the fixing portion 23 and the metal shielding plate 12 are connected by welding, preferably by laser welding in this embodiment. The fixing portion 23 is welded to the inside of the metal shield plate 12. The first connecting portion 21 is long, the middle position of the contact portion 22 is connected to the first connecting portion 21, and the fixing portion 23 is sheet-shaped. The fixing portion 23 is plural, and specifically, one fixing portion 23 is disposed between two contact portions 22 having a large spacing distance.
Preferably, the contact portion 22 is disposed perpendicular to the first connection portion 21 in this embodiment, and in other embodiments, the contact portion 22 is disposed at an angle with respect to the first connection portion 21.
Preferably, the metal shielding assembly further includes a spring assembly 3, the first metal shielding element 1 is provided with a plurality of spring assemblies 3 at intervals, and is specifically disposed on the metal shielding plate 12 which is not connected to the second metal shielding element 2, as a preference, the spring assembly 3 and the metal shielding plate 12 are integrally formed in this embodiment, and in other embodiments, the spring assembly 3 and the metal shielding plate 12 may also be connected by welding. The spring assembly 3 can be overlapped with the opposite-insertion-end shielding member 20. Specifically, the elastic piece assembly 3 includes a second connection portion 31 and one or two second elastic pieces 32 disposed on the second connection portion 31, and the second connection portion 31 is connected to the metal shielding plate 12. The spring assembly 3 is in a shape of a fishfork, and the second spring 32 can be overlapped with the opposite-insertion-end shielding part 20. The elastic sheet assemblies 3 at the two ends of the first metal shielding element 1 comprise a second elastic sheet 32, and the rest elastic sheet assemblies 3 comprise two second elastic sheets 32. The two side walls 201 of the opposite-plug-end shielding element 20 are respectively overlapped by the second elastic sheets 32, specifically, the second elastic sheets 32 of the elastic sheet assemblies 3 at the two ends of the first metal shielding element 1 are overlapped on the side surface of one opposite-plug-end shielding element 20, and the two second elastic sheets 32 of the rest elastic sheet assemblies 3 are respectively overlapped on the two adjacent opposite-plug-end shielding elements 20. The surface of the opposite-plug end shielding part 20 overlapped with the first elastic sheet is perpendicular to the surface overlapped with the second elastic sheet 32.
The second elastic sheet 32 of the elastic sheet component 3 is overlapped with the side wall 201 of the opposite plug end shielding piece 20, so that the backflow path can be effectively shortened, the crosstalk between signals is reduced, and the signal transmission quality is ensured. The second elastic sheet 32 of the elastic sheet component 3 is overlapped with the side surface of the opposite-inserting-end shielding piece 20, so that the elastic sheet component can be applied to communication between backflow planes in a narrow space.
The embodiment also discloses a connector which comprises the differential signal wire 4 and the metal shielding component. The differential signal line 4 is partially disposed in the first metal shield 1, and the butt terminal 41 of the differential signal line 4 is disposed to be exposed to the first metal shield 1. Specifically, the plastic package module 11 is provided with a plurality of accommodating cavities 111, and each accommodating cavity 111 corresponds to one differential signal line 4. The differential signal lines 4 are located in the accommodating cavities 111, and the differential signal lines 4 are used for transmitting differential signals. The differential signal line 4 is provided with two butt terminals 41 at intervals, and the contact of the butt terminal 41 of the differential signal line 4 and the contact of the first elastic sheet are located on the same side. Both sides of the two butt terminals 41 are provided with the contact portion 22 and the spring assembly 3.
The plastic package module 11 is injection molded at the outer side of the differential signal line 4, then the two metal shielding plates 12 are attached to the two sides of the plastic package module 11, the metal shielding plates 12 are arranged at the two sides of the differential signal line 4, the two metal shielding plates 12 can enhance the isolation shielding effect on the differential signal line 4, the signal backflow path is increased, and the signal crosstalk is reduced.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A metal shielding assembly, comprising:
a first metallic shield (1);
the second metal shielding piece (2) comprises a first connecting portion (21) and a plurality of contact portions (22) arranged on the first connecting portion (21) at intervals, the first connecting portion (21) is connected to the first metal shielding piece (1), the contact portions (22) comprise two first elastic sheets arranged on two sides of the first connecting portion (21) respectively, and the two first elastic sheets can be in lap joint with the butt-plug end shielding piece (20) of the butt-joint connector.
2. The metal shielding assembly according to claim 1, characterized in that the second metal shield (2) further comprises a fixing portion (23), the fixing portion (23) connecting the first connection portion (21) and the first metal shield (1).
3. Metal shielding assembly according to claim 2, characterized in that the fixing portion (23) and the first metal shielding element (1) are welded connected.
4. Metal shielding assembly according to claim 1, characterized in that the contact portion (22) is arranged perpendicular to the first connection portion (21).
5. The metallic shield assembly of claim 1, wherein both side walls (201) of said butt shield (20) have said contact portion (22) overlapping therewith.
6. The metal shielding assembly according to claim 1, further comprising a spring assembly (3), wherein the plurality of spring assemblies (3) are arranged on the first metal shielding member (1) at intervals, and the spring assembly (3) can be overlapped with the opposite-insertion-end shielding member (20).
7. The metal shielding assembly according to claim 6, wherein the spring assembly (3) comprises a second connecting portion (31) and one or two second springs (32) arranged on the second connecting portion (31), the second springs (32) being capable of overlapping the opposite-insertion-end shielding member (20).
8. The metal shielding assembly of claim 7, wherein the second resilient tab (32) overlaps both sidewalls (201) of the opposite terminal shield (20).
9. The metal shielding assembly according to claim 6, wherein the first metal shielding member (1) comprises two metal shielding plates (12), the two metal shielding plates (12) are respectively attached to two surfaces of the plastic module (11), the second metal shielding member (2) is connected to one of the metal shielding plates (12), and the spring assembly (3) is connected to the other metal shielding plate (12).
10. A connector, characterized in that it comprises:
the metal shielding assembly of any one of claims 1-9;
and the differential signal wire (4) is partially arranged in the first metal shielding piece (1), and the butt joint terminal (41) of the differential signal wire (4) is arranged by being exposed out of the first metal shielding piece (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110144504.0A CN112968315B (en) | 2021-02-02 | 2021-02-02 | Metal shielding assembly and connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110144504.0A CN112968315B (en) | 2021-02-02 | 2021-02-02 | Metal shielding assembly and connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112968315A true CN112968315A (en) | 2021-06-15 |
| CN112968315B CN112968315B (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110144504.0A Active CN112968315B (en) | 2021-02-02 | 2021-02-02 | Metal shielding assembly and connector |
Country Status (1)
| Country | Link |
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| CN (1) | CN112968315B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824959A (en) * | 2022-03-31 | 2022-07-29 | 中航光电科技股份有限公司 | Shielding piece bending structure, terminal module and connecting structure |
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| US20020025721A1 (en) * | 1999-05-13 | 2002-02-28 | Berg Technology, Inc. | Shielded header |
| CN101884140A (en) * | 2007-08-03 | 2010-11-10 | 安费诺公司 | Electrical connector with divider shields to minimize crosstalk |
| CN108365362A (en) * | 2017-01-27 | 2018-08-03 | 泰连公司 | Ground shield for contact module |
| CN109599726A (en) * | 2017-09-29 | 2019-04-09 | 中航光电科技股份有限公司 | A kind of differential connector component and its differential connector |
| CN109861035A (en) * | 2019-04-22 | 2019-06-07 | 四川华丰企业集团有限公司 | High speed connector |
| CN109950754A (en) * | 2017-12-06 | 2019-06-28 | 泰连公司 | Shielding for connector assembly |
| CN110323632A (en) * | 2018-03-29 | 2019-10-11 | 泰连公司 | The shielding construction of the contact module of electric connector |
| CN110492311A (en) * | 2019-07-24 | 2019-11-22 | 华为机器有限公司 | Shield piece, terminative connector and connector assembly |
| CN211530332U (en) * | 2019-09-17 | 2020-09-18 | 华为技术有限公司 | Connector, connecting assembly and back plate interconnection system |
-
2021
- 2021-02-02 CN CN202110144504.0A patent/CN112968315B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020025721A1 (en) * | 1999-05-13 | 2002-02-28 | Berg Technology, Inc. | Shielded header |
| CN101884140A (en) * | 2007-08-03 | 2010-11-10 | 安费诺公司 | Electrical connector with divider shields to minimize crosstalk |
| CN108365362A (en) * | 2017-01-27 | 2018-08-03 | 泰连公司 | Ground shield for contact module |
| CN109599726A (en) * | 2017-09-29 | 2019-04-09 | 中航光电科技股份有限公司 | A kind of differential connector component and its differential connector |
| CN109950754A (en) * | 2017-12-06 | 2019-06-28 | 泰连公司 | Shielding for connector assembly |
| CN110323632A (en) * | 2018-03-29 | 2019-10-11 | 泰连公司 | The shielding construction of the contact module of electric connector |
| CN109861035A (en) * | 2019-04-22 | 2019-06-07 | 四川华丰企业集团有限公司 | High speed connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114824959A (en) * | 2022-03-31 | 2022-07-29 | 中航光电科技股份有限公司 | Shielding piece bending structure, terminal module and connecting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112968315B (en) | 2023-04-18 |
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